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Saturday, October 30, 2010

RAM Failure

RAM Failure

Summary: -

If you see random application crashes, kernel panics, and failures in simple programs that have worked for a long time, it is possible you are experiencing RAM failure. 

Symptoms: -

When RAM starts going bad, what you write to an address is not what you get back when you read it later. This causes random corruption of data, programs that crash, and even kernel "oops"es and kernel panics. If it's only a small amount of RAM that is corrupt then few programs will fail, but something will eventually fail when that memory gets used.
Some kernel panics may bring the system to a halt. If they reoccur soon after the system is off for a while you can be more confident it isn't a heat-related issue.
Even small programs may fail if they happen to use the affected memory. If they work once but then fail on a different attempt, this can be a sign of memory failure, since the memory used will be different from run to run.

Friday, October 29, 2010

Computer POST / beep codes

Computer POST / beep codes

AMI BIOS beep codes:
Below are the AMI BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.



How to Install a Sound Card on a Computer

How to Install a Sound Card on a Computer

1). Shut down the computer.

2). Unplug machine from the surge protector.

3). Disconnect all peripherals from the computer.

4). Remove the cover of the chassis and lay computer on its side if it is a tower.


Wednesday, October 27, 2010

Install AGP Card

Install AGP Card

Welcome to our guide to video card installation: -
Most modern video cards use the AGP interface as it offers better performance than the PCI interface; this guide will take you through installing an AGP video card with the aid of text and images.

To install your video card you will need:
  • Compatible AGP video card.
  • Cross-point (Philips) Screwdriver suitable for your PC case.
  • Fixing screw (usually comes with the case or if upgrading use old screw).
  • Anti-Static Wrist-strap (if available).

Locating the AGP slot:
Note: Disconnect the power and remove your PC's cover, see our guide. (If you are upgrading your current video card then you will have to remove it first, to take the old card out remove the fixing screw (for an example see fig 1.4) and then gently lift the card out of the slot, they can be stubborn but if you gently lift one end at a time it will eventually come out (treat it like a loose tooth)).



We have provided an example of an AGP slot in fig, your AGP slot may differ but only slightly.



In fig you can see an example of an AGP video card and we have pointed out the alignment notch.



Installing the video card:
1). Next take the video card (hold it by the edges) and line it up with the slot paying careful attention to the alignment notch, when it is aligned correctly press gently but firmly until the card is seated fully and evenly into the slot (see fig below).



2). When you are happy that the card is firmly in place, insert the fixing screw fig and check to make sure you haven't loosened anything during installation.



Replace the case cover and reconnect the mains power.



3). When you reboot your machine Windows (or other OS) should find the card automatically, it may then ask you to insert the Disk/CD that came with your video card, insert the CD and follow the on-screen instructions to install the video card driver.

4). If your machine makes a series of beeps when you turn it back on then the video card may be inserted incorrectly, again make sure the card is fully inserted into the AGP slot.

Monday, October 25, 2010

Different types of RAMs

Different types of RAMs

RAM : - The type of RAM doesn't matter nearly as much as how much of it you've got, but using plain old SDRAM memory today will slow you down.
There are main types of RAM: SDRAM, DDR and Rambus DRAM.

SDRAM (Synchronous DRAM): -
Almost all systems used to ship with 3.3 volt, 168-pin SDRAM DIMMs. SDRAM is not an extension of older EDO DRAM but a new type of DRAM altogether. SDRAM started out running at 66 MHz, while older fast page mode DRAM and EDO max out at 50 MHz. SDRAM is able to scale to 133 MHz (PC133) officially, and unofficially up to 180MHz or higher. As processors get faster, new generations of memory such as DDR and RDRAM are required to get proper performance.


How to upgrade RAM

 
How to upgrade RAM
What is RAM:- RAM (random access memory) is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. RAM is much faster to read from and write to than the other kinds of storage in a computer, the hard disk, floppy disk, and CD-ROM. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. When you turn your computer on again, your operating system and other files are once again loaded into RAM, usually from your hard disk.

If your computer slows down when you're working with large files or many programs at once, you might be able to improve performance by installing extra RAM (Random Access Memory - your computer's temporary operating memory). These instructions will work for the majority of machines built in the mid 1990s and later.


1). Determine what kind of RAM you need, and whether your computer has enough open slots to hold it. The new RAM should match the existing RAM's specifications and configuration.

2). Shut down the computer and leave it plugged into the surge suppressor.

3). Disconnect all peripheral devices, such as the monitor, from the computer.

4). Remove the computer cover.


5). Ground yourself to the computer with professional grounding equipment like an anti-static wristband or hold a metal part of the chassis.

6). Remove any cards or internal components necessary to give yourself unobstructed access to RAM sockets.

7). Pick up your SIMM (single in-line memory module) or DIMM (dual in-line memory module) by the ends without touching pins or chips.
8). If adding a SIMM, find the notched end and turn the SIMM so that it is parallel to the existing RAM card(s). Insert the SIMM into the socket at a 30-degree angle. If adding a DIMM, insert the DIMM straight in so that it is perpendicular to the motherboard.
9). Use slight pressure to keep a SIMM from backing out while rotating the module to an upright position perpendicular to the motherboard.


10). Make sure the small holes on each side of a SIMM fit into holders.

11). Feel or hear retaining clips lock a SIMM into the socket; close the side clips on a DIMM.

12). Gently try to pull the module out to ensure it is locked in position.


13). Replace all internal components.

14). Leave the cover off and reconnect the monitor, keyboard and mouse.

15). Turn on the computer.

16). Check the amount of RAM by right-clicking the My Computer icon in Windows and choosing Properties. On a Mac, use the About this Macintosh command in the Apple menu.

17). If you don't see the right amount of RAM, turn off the computer and try "reseating" the SIMM or DIMM (take it out and put is back in) and reboot. If that doesn't work, call a technician.

18). Shut down the computer and disconnect the peripherals again.

19). Replace the cover and reconnect all the peripherals.


Friday, October 22, 2010

Partition External Hard Drive

Partition External Hard Drive
Most of the external hard drives come with one preformatted partition ready to use. But if it didn't, or if you don't like the default setup, changing it is easy. And of course you'll want to do this before you load that disk up with data.
Start by Right clicking on My Computer and then clicking on Manage. In the resulting application window, click on Disk Management in the left hand pane. You should see something similar to this:


How to Install a CD/DVD Drive

How to Install a CD/DVD Drive

To install an external DVD drive: -
1). When purchasing a new drive be sure to understand the many formats available: DVD, DVD+R, DVD-R, DVD+/-R, DVD+/-RW are a few for example. More recent technologies include DVD-DL, HD DVD and Blu-Ray Disc. A decent DVD drive should be able to read and write both "+" and "-" technologies and also support recordable (R) and re-writable (RW) technology. Essentially look for a DVD+/-RW drive if you plan on recording DVD's, or just a plain DVD drive for reading DVD's (movies, games, etc). There are a variety of speeds from 2x-16x for a wide spectrum of users and needs; higher speeds will record faster.

2). If you have a USB connection on your computer you can use an external drive. The advantage to an exterior drive is that you can use it on other computers as well.


Thursday, October 21, 2010

BIOS Upgrade

 
Upgrade BIOS

Sometimes, especially when upgrading your PC, you may need to perform a BIOS upgrade in order to update your system to accept a new hardware part or to fix a bug. For the average Joe, this procedure is quite obscure. In this tutorial we will give step-by-step procedures on how to upgrade your system BIOS.

PLCC (Plastic Leaded Chip Carrier) and is used by current motherboards.

How to Install A scanner

How to Install A scanner?


Installing a scanner on newer PCs is pretty straight-forward. If the scanner is a USB device, you'll need to install the software CD that came with the scanner. These will normally be one or two disks and a few others that usually only prove to be trial software or other programs you do not need. Be wary of installing these third-party CDs, as you likely will never use them and they tend to want to take over the way media is handled on your computer.

First, unpack the scanner from the box. Make sure you have all of the attachments and especially the quick setup instructions if they were in the box. You can assemble the scanner and set if off to the side. You can plug the power cable in, but do not plug the USB cable into the computer.

How to setup a wireless printer

How to setup a wireless printer
  1. The first thing you will need is a wireless computer with a wireless network card included. If your computer doesn't have a wireless network card, you can buy one at any computer store.  

Wednesday, October 20, 2010

How to install wireless mouse?

How to install wireless mouse?

Unpack the Equipment: -
Installing a wireless keyboard and mouse begins with unpacking all of the equipment from the box. If you purchased this as part of a rebate program, be sure to keep the UPC from the box.

Tuesday, October 19, 2010

Install a new printer

Install a new printer: -

When installing a new printer with the Add Printer Wizard, you can choose between adding a local printer (one that's directly cabled to your computer through one of the ports) or a network printer (a printer that's connected to your network with an Ethernet connection, just as your computer is connected to the LAN).

To install a new local printer with the Add Printer Wizard, follow these steps:
  1. Click the Start button on the Windows taskbar and then click Control Panel on the right side of the Start menu.
  2. Click the Printers and Other Hardware hyperlink if the Control Panel window is in Category View.

Thursday, October 14, 2010

Tools like "Page Break","Link","Undo","Redo" missing in blog editor

There are some templates which have settings for blog also associated and some times you have may be unable to find "Page Break","Link","Undo","Redo" etc tools if you have chosen any of those templates... But don't worry follow the below steps to recover these options.


No Display & Monitor Beeping


No Display & Monitor Beeping

When your computer doesn't start or starts making noises that you have never heard before it can be troubling and leave you with no idea what to do to get your computer working again. If you relax and work through the problem systematically you can often resolve the problem in short order. More important than fixing the computer fast is to find out what the problem is and is not.

Unable to detect SATA hard disk during XP installation

In order to install XP (of either flavour) you need to follow a particular method to install the SATA drivers.

1).You'll need to have the SATA drivers available on a floppy disk ready for the install process - if your mainboard manufacturer has not supplied a floppy disk with the drivers you'll find them on your mainboard CD or manufacturers website.

2).Make sure that, if you need to copy onto a floppy disk, you transfer all the files from the SATA driver folder - special attention needed to ensure you include all relevant files.

Wednesday, October 13, 2010

Configuring a Mother Board Which Uses Jumpers

Configuring a Mother Board Which Uses Jumpers

You need to have the manual for your board available. If you do not have the manual, log on to the manufacturer’s web site and see if you can find this info there. You can also try their tech support via phone. In some cases, too, some of the jumper settings are printed onto the surface of the motherboard. If you don’t have any of this info, you are just out of luck. Unfortunately, you must have some form of documentation available simply because motherboards have so many settings to adjust. If you’re dealing with an older board, you may need to spend some time trying to identify the manufacturer so that you can see if they do support it. You can many times use the BIOS ID numbers to identify the board online.

Tuesday, October 12, 2010

Laptop Hardware Failures

Hardware Failures:

First of all, most of the hardware failures that are going to be presented in this article require you to disassemble the laptop and work on its internal components. Because of this, you need the required components to take the laptop apart (such as screwdrivers, etc.) and space, lots of space. If you don't have a workbench, then working on that large table in the living room should do it.

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